Stevens Rehen is a stem cell neurobiologist and head of research at D’Or Institute for Research and Education in Brazil. He is also a visiting senior scientist at Promega Corporation in the US and a professor at the Institute of Biology, Federal University of Rio de Janeiro. He has dedicated efforts to studying the impacts of Zika virus and psychedelics using iPS cells and brain organoids. His recent findings have shed new light on the potential therapeutic benefits of psychedelics. Rehen is affiliated with the Latin American Academy of Sciences and the Academy of Sciences for the Developing World.